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authorJaegeuk Kim <jaegeuk.kim@samsung.com>2013-04-01 08:32:21 +0900
committerJaegeuk Kim <jaegeuk.kim@samsung.com>2013-04-03 17:27:51 +0900
commitb74737541c5190ab2ad3ee0d7b323e860b988df1 (patch)
tree5f836c7bf8ac075169b89238a5f6a865c9d4c3a8 /fs/f2fs/super.c
parent60374688a1a1cc8ef173d3dab42574719b851ac4 (diff)
f2fs: avoid race for summary information
In order to do GC more reliably, I'd like to lock the vicitm summary page until its GC is completed, and also prevent any checkpoint process. Reviewed-by: Namjae Jeon <namjae.jeon@samsung.com> Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
Diffstat (limited to 'fs/f2fs/super.c')
-rw-r--r--fs/f2fs/super.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index 728c20a8e45..ca541334665 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -137,10 +137,13 @@ int f2fs_sync_fs(struct super_block *sb, int sync)
if (!sbi->s_dirty && !get_pages(sbi, F2FS_DIRTY_NODES))
return 0;
- if (sync)
+ if (sync) {
+ mutex_lock(&sbi->gc_mutex);
write_checkpoint(sbi, false);
- else
+ mutex_unlock(&sbi->gc_mutex);
+ } else {
f2fs_balance_fs(sbi);
+ }
return 0;
}